Home / 131,121.27-180,976.01-83,365.29

Finding the Fourth Proportional to 131,121.27, 180,976.01 and 83,365.29

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Solution

The fourth proportional to 131,121.27, 180,976.01 and 83,365.29 is: 115,062.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,121.27 : 180,976.01 = 83,365.29 : x
  2. Step 2: Convert to fraction form
    131,121.27/180,976.01 = 83,365.29/x
  3. Step 3: Cross multiply
    131,121.27x = 180,976.01 × 83,365.29
  4. Step 4: Simplify right side
    131,121.27x = 15,087,117,139.87
  5. Step 5: Solve for x
    x = 15,087,117,139.87/131,121.27
  6. Step 6: Final answer
    x = 115,062.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.